Remove BUILD_INFO, it makes the build non-reproducible

--- a/Makefile
+++ b/Makefile
@@ -38,7 +38,7 @@ INSTALL ?= install
 
 BUILD_INFO=" Date: $(shell date -r ChangeLog +%Y-%m-%dT%H:%M:%S%z)\n git branch/commit: $(shell if [ x${CI_COMMIT_REF_NAME} != x ]; then echo ${CI_COMMIT_REF_NAME} ; elif [ -e .git ] || [ -e ../.git ]; then git symbolic-ref --short HEAD ; else echo not built from git repository ; fi) / $(shell if [ x${CI_COMMIT_SHA} != x ]; then echo ${CI_COMMIT_SHA}; elif [ -e .git ] || [ -e ../.git ] ; then git rev-parse --verify HEAD ; else echo - ; fi )\n by $(USER)@$(shell hostname -f)\n OS: $(shell uname -s -r -p)\n Compiler: $(shell $(CC) --version | head -1)"
 
-CFLAGS:=$(CFLAGS) -D DESTDIR=\"$(DESTDIR)\" -D BUILD_INFO=\"$(BUILD_INFO)\" -D VERSION=\"$(VERSION)\" -I.
+CFLAGS:=$(CFLAGS) -D DESTDIR=\"$(DESTDIR)\" -D VERSION=\"$(VERSION)\" -I.
 
 ifeq ($(USE_CA), YES)
 		CC=clang
